Current lead time on parts is apx 5-10 business days plus travel time
All parts will require a signature upon delivery
(Fed Ex)

Don't get caught outgunned, step up to the 6.8mm
The new #1 AR15 deer and hog cartridge for good reason

AR Performance as a parts manufacturer selling direct to the public is committed to providing the best practical performance in the AR15 platform at a decent price. Our premium barrels out perform most so called "match grade" barrels. Better exterior ballistics, terminal performance, accuracy, velocity and long life are all possible with finely tuned chambers and high performance  hybrid 5R rifling in Melonite treated 4150 CMV barrels. 4150 barrels are twice as strong as some stainless. Our 6.8 barrels are the number one choice.  We machine the strongest AR15 9310 alloy bolts made  and several efficient muzzle devices.

A BETTER 6.5 in a 6.8 MOUSE TRAP
  I have designed a chamber 41mm long based on a 6.5 bullet in a 6.8SPC case. 6.8 bushing dies are used to neck down the case then the cases are trimmed to 1.620". That lets the popular long high BC 6.5 bullets like the Hornady 100Amax, 123gr Amax and SST, Barnes 100 and 120 TTSX, Nosler 120NBT and Lapua 100gr Scenar to be loaded to the cannelure or ogive without modifying mags. I believe our SIX5  design corrects all the problems with the wider PPC case used in the Grendel/264. The bolts are stronger, extractors are stronger, several mag brands to choose from.  Hornady, Federal, SSA/Nosler and Remington makes brass for $35-50/100. There is no need to hold the max pressure down to 52,000 PSI to keep bolts from breaking, the SIX5 runs at 58,000PSI max. The hoop stress around the chamber is less due to the cartridge being smaller diameter than the Grendel. In addition we use only 4150 11595E gunbarrel steel to increase the strength around the chamber over the weaker 416R stainless.  A normal AR15 lower receiver may be used, some steel mags like PRI allow loading to the same length as the Magpul SIX8 mags. The performance will be apx the same as the Grendel/264 with 123 gr bullets and faster with 100 and lighter bullets. 
16" helical flute barrels in stock

The 6.5BRX in an AR15 is coming back summer 2015
The 6.5 fans have requested I bring back the 6.5BRX. It is apx 200fps faster than the 6.5 Grendel.
With the right bullet it can be one of the  flattest shooting AR15s made right behind the 6mmBRX.

6.5 Grendel bolts- improved design apx 24% stronger than ANY other Grendel bolt.-In Stock on bolt page

5.56x42- Based on the 6.8 case. The ultimate AR15 varmint cartridge, performance close to the 22-250
Allows using longer bullets than the BHW version.
30 Herrett- based on the 6.8 case. The real semi-auto 30-30. 250 fps faster than the 300 AAC BLK.
Allows using longer bullets than the BHW version

270 AR-
The Ultimate AR15 hunting cartridge
Available in limited quantities for the AR15, a full power .277 caliber cartridge capable of propelling 120 gr bullets over 2900fps and 130gr 270 bullets to 2800fps out of AR15 20" barrels. That is as fast as factory 260 Remington ammo.   It is based on the 6.5x47 Lapua case. Shortened  Hornady 6.5 Creedmoor cases, Win 308 cases or 6.5x47. 6.5x47 Lapua cases work best and last longer.

Whidden Gunworks  custom micrometer resize dies for the 270AR, avail through our store.
2nd batch of barrels expected May 2015

The 6.8 
The 6.8X43 was developed as an improved CQB cartridge by the 5th Group Special Forces. The devasting performance combined with the AR15 makes it the #1 choice of hog and deer hunters .
It has apx 80% of the performance of the 308 in a much lighter platform.
We have designed a 5 groove hybrid rifling similar to 5R with a low land to groove ratio to increase the bore area and lessen bullet deformation which leads to better accuracy. We have found that our 5R Melonite QPQ  barrels consistently produce 60-90fps more than most SPCII 10 and 11 twist 4 groove barrels with the same loads. Hornady's 110gr HPBTs reach 2600fps from our 16" barrels and normally shoot under 3/4" groups at 100yds. With better shooters groups are  near 1/2" so they shoot better than some high dollar stainless barrels and most match grade 5.56s .  Hornady's 120gr SST and Federal's Fusion 115gr work very well on deer and hogs. With handloads it is possible to push a 100gr Nosler close to 3000fps from a 18" barrel, nothing else comes close to the performance of a 6.8.
ammo finder
The 4150 11595E steel Melonite(QPQ) treated barrels we sell will last twice as long as stainless barrels and the  final finish meets or exceeds stainless steel corrosion resistance. Stainless barrels .980" in diameter do not meet the 2:1 burst/hoop strength safety ratio required by the firearms industry standards in anything larger than the 5.56. We only use the stronger 4150 11595 E barrel steel in all of our barrels.
The 6.8SPCII and 6.8x43 ARP chamber we use shoot the same ammo including SSAs Tac loads and Wilson Combats ammo
uses the same size dies, only the throat in the chamber is different.  The chamber was designed to increase accuracy.

To find ammo click here-

for all things 6.8  Boar hunters forum  Modern Sporting rifles

Fr Frog
More good info than you will ever believe. Scroll down for topics

We recommend Surefire suppressors

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AUTHORIZED DEALERS/BUILDERS-Warranty good to original purchaser or authorized dealers only.  Receipt must be included with every return.

Upper builders using AR Performance products

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    All Products made in America

    Beene Enterprises International
    PO Box 1981
    Morristown, Tn 37816

    The best way to contact is by email

    Phone: 423-353-1107  8am-5pm eastern time  M-Thurs only

    We're in business for the working man.